Bob thinks that generating and storing a random salt value for each user id is a waste. Instead, he is proposing that his system administrators use a cryptographic hash of the user id as its salt. Describe whether this choice impacts the security of salted passwords and include an analysis of the respective search spaces

1of the following choices, which one best describes one way that christianity came to east africa? a. christians traveled in caravans through the sahara desert and introduced the people of mali to a new religion. b. christian traders from the mediterranean interacted with the people of axum. c. christian military from west africa traveled across the continent to bring their religion to the people of east africa. d. christian rulers from asia traveled to east africa to bring their religion to the people. 2 which trade item from outside the region did west africans need most? a. gold b. camels c. salt d. iron

What greek scientist created a screw to move water for irrigation?

What challenges did nigeria faced after it gained its independence from britain